Driving connection.



E. A. WOLFE & H. W. GILBERT.v

DRIVING CONNECTION.

'APPLICATION FILED Novn, 1911.

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DRIVING CONNECTION. APPLICATION FILED Nov. 7, 1911.

Patented Sept. 3, 1912.

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ELVIN A. WOLFE AND HOWARD W. GILERT, OF NAZARETH, PENNSYLVANIA.

DRIVING CONNECTION.

To all 'whom it may concern:

Be it known that we, ELVIN A. WoLFn.

county of Northampton and State of Penn-- Sylvania, have inventedcertain new. and

I useful .Improvements in Driving Connections, of which the following is-a specification.

This invention relates to an improvement ink mills, and particularly ofthat type known as Griiin Mills, such as for instance, as shown in thepatent issued to E.- C. Griffin, March 31, 1891, Number 449,118.

The principal object of the invention 1s to provide a novel universaljoint connection for the roll shaft whereby said shaft will be preventedfrom breaking and rising when rotating, and yet permit of the readydisassembling of the parts.

Another object of the invention is to provide a universal jointconnection which 1s composed of a minimum number of parts, is thereforesimple in construction, and is cheap to manufacture.

With these and other objects in View, the invention consists in theconstruction and novel combination of parts hereinafter fully described,illustrated inthe accompanying drawings, and pointed out in the claimshereto appended; it being understood that various changes in the form,proportion, size and minor details of construction within the scope ofthe claims, may be resorted to without.'departing from the spirit or sacriicing any of the advantages of the invention.

ln the drawings Figure 1 is a detail vertical sectional view through amill equipped with our invention, parts thereof being shown inelevation, Fig. 2 is a detail longitudinal sectional view through such aconnection, Fig. 3 is a detail cross sectional View, Fig. 4. is a detailelevation of the upper end of the shaft, Fig. 5 is aview partly inelevation and partly in section of the ball and trunnio-ns, Fig. 6 is aperspective View of the split bushing, and Fig. 7 is a perspective viewof the locking pin.

Like reference numerals designate corresponding parts in all the figuresof the drawings.

Referring to the drawings, the invention comprises a roll-shaft 5, whichis normally disposed vertically. The shaft, below the Specification ofLettersy Patent.

Application led November 7, 1911. Serial No. 658,982.

with the top of said ball.

Patented Sept. 3, 1912.

upper end 6 and in spaced relation thereto, is enlarged to form ashoulder 7 and a consequent bearing 8. Formed in the bearing 8 is aninwardly extending recess 9 adapted for a purpose hereinafter more fullydescribed.- Integral with the end 6 of the shaft is a cap 10.

Disposed upon the bearing 8 is a split bushing which is designated as awhole by the reference numeral 12, and consists of two sections 1li-13,the outer surfaces 14T-14 of said 'sections conjointly taperingdownwardly. 'One of these sections is formed with a transverse opening15 which registers with the recess 9 of the shaft.

Our invention further comprises a ball 16 which is centrally formed withtapering bore 17 .corresponding in size to and adapted to be disposedaround the bushing 12. The lower edge 18 of this bushing isconcentrically formed, and is disposed over the shoulder 7 formed on thesaid shaft. Formed in the upper portion of the wall of the bore 17 is ashort helical groove 19, the inner end ythereof forming a consequentstop 20, and the outer end 21 thereof merging This groove is adapted toregister with the recess 9 of the shaft and the opening 15 of thebushing. Integral with the ball and projecting outwardly atdiametrically opposite points are trunnions 20--20 which are adapted tobe disposed inseats of the pulley 22 of theordinary Griffin Mill, asillustrated in Fig. 1 of thedrawings. Inasmuch as the construction ofthe pulley is well known, it is deemed unnecessary to specificallydescribe the same. y. j

in practice, when it is desired to assemble the parts, a locking pin 23has one end disposed within the recess 9 of the shaft. The sections 13of the bushing 12 are then disposed upon vthe bearing 8 in such amanner.

formed with an angular' end 24. The ball 16 which carries the trunnious2O isthen slid upwardly along the shaft 5 over the shoulder 7 and uponthe bushing 12,` the helical groove 19 receiving the angular end 24 ofsaid locking pin. As a result of this construction, it will be observedthat las the shaft is rotated to the right, the angular end 24 of thepin will abut'the inner end or stop 20 of, said groove 19, and as aresult any i tendency of the shaft to rise will be prei thereby tend tosupport the shaft.

vented as will be readily apparent. be further observed that on accountof the inclined bore 171 of the ball and theA corresponding shaped outerface of the bushing, any tendency of said bushing to move downwardlywill be prevented. It will also be observed that the diameter vof thecap 10 is greater than the inner diameter of the bushing, and as aresult, the peripheral edge of the cap will rest upon said bushing, andIt is to be also observed that by nieans of the locking pin 23 the shaft5, the bushing 12 and ball 16 are locked to rotate together, yetpermitting of the parts to be readily disassembled upon the reverserotation of said shaft.

What is claimed is:

1. In combination with a shaft having a shoulder formed thereon to formaconsequent bearing, of a bushing disposed on said vbearing against theshoulder, a pin connecting the bushing and shaft and projectingoutwardly beyond said bushing, and a ball disposed around said bushingand having its bore formed with a helical groove for receiv' ing theprojecting end of said pin.

2. In combination with a shaft having a shoulder formed thereon to forma conse- Itis to yond the bushing, and a ball having its bore disposedaround'the bushing, the bore being formed With a helical grooveforreceiving the projecting end of the pin.

3. In combination with a shaftvhaving a.

shoulder formed thereon to form aconsequent bearing, of a bushingdisposed on said bearing against the shoulder, the outer'surface of saidbushing tapering toward the shoulder, a pin connecting the bushing andshaft'and projecting outwardly beyond said bushing, and a ball disposedaround said bushing and having its bore correspondingly tapered to itthe bushing, said bore being formed with a helical groove for receivingthe projecting end of the pin. 4

In testimony whereof we aiix our signatures, in presence of twowitnesses.

ELVIN A. woLFE. HOWARD W. GILBERT.

y llitnesses:

LEROY G. PETERS, JOSEPH H. -SIGMAN

